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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
public import SWBUtil
public import SWBCore
public final class InterfaceBuilderCompilerOutputParser : GenericOutputParser {
/// Regex to extract location information from a diagnostic prefix (capture group 0 is the name, 1 is the line number or the object identifier).
static let locRegex = RegEx(patternLiteral: "^([^:]+):(?:([^:]+):)? .*$")
/// Private function that parses and returns a DiagnosticLocation based on a fragment of the input string.
public override func parseLocation(_ string: String, in workingDirectory: Path) -> Diagnostic.Location? {
if let match = InterfaceBuilderCompilerOutputParser.locRegex.matchGroups(in: string).first {
let filename = match[0]
// If the match is one of the tool basename, it is not a filename.
if !toolBasenames.contains(filename) {
// Otherwise, we assume it's in traditional "path:identifier" form, where identifier is optional and represents a line number or a custom object identifier.
let fileLocation: Diagnostic.FileLocation
if let lineNumber = Int(match[1]) {
fileLocation = .textual(line: lineNumber, column: nil)
} else {
fileLocation = .object(identifier: match[1])
}
return .path((Path(filename).makeAbsolute(relativeTo: workingDirectory) ?? Path(filename)).normalize(), fileLocation: fileLocation)
}
}
return super.parseLocation(string, in: workingDirectory)
}
/// The Interface Builder compiler output occasionally includes a category number in the trailing portion of the line (capture group 0 is the title, 1 is the category number).
static let messageWithTrailingCategoryRegex = RegEx(patternLiteral: "(.*) (\\[[0-9]\\])?$")
public override func parseMessage(_ string: String) -> String {
if let match = InterfaceBuilderCompilerOutputParser.messageWithTrailingCategoryRegex.matchGroups(in: string).first {
let message = match[0] // match[1] == category
return message
}
return super.parseMessage(string)
}
}
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